MESON Chess Problem Database

Problem Display
PID: 195060 (K3R3/1Bp5/2n1pr2/2Nk1p2/p4q1r/1PQ1n3/4R3/8 w - - 0 1)

Dobbs, Gilbert S

Pittsburgh Gazette-Times, 1918

K3R3/1Bp5/2n1pr2/2Nk1p2/p4q1r/1PQ1n3/4R3/8

#2

7 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Rd8#
    • 1...Qh6
      • 2.Rd8#
    • 1...Qf1
      • 2.Rd8#
    • 1...Qf2
      • 2.Rd8#
    • 1...Qf3
      • 2.Rd8#
    • 1...Qb4
      • 2.Rd8#
    • 1...Qe4
      • 2.Rd8#
    • 1...Qg4
      • 2.Rd8#
  • Tries
    • 1.Bxc6+?
      • 1...Kd6
        • 2.Sb7#
      • 1...Kxc6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Bxc6#
      • 1...Kxe4
        • 2.Bxc6#
      • 1...Qxe4
        • 2.Rd8#
      • 1...fxe4
        • 2.Rd2#
      • 1...Qd6
        • 2.Sxf6#
      • 1...Sc4
        • 2.bxc4#
      • 1...e5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::R(G)
  • Tries
    • Try
      • B(E);CHECK,XS(g)
      • Vars
        • K(e);P-FLIGHT::S(D)
      • Refutation
        • K(e);S_FLIGHT,XB(E)
  • Actual
    • S(D);
    • Threat
      • B(E),XS(g)
    • Vars
      • K(e);N_SPINS(g),P_SPINP(h),P_SPINS(a),S_FLIGHT,XS(D)::B(E),XS(g)
      • Q(c);N_GUARD,SBLOCK,XS(D)::R(G)
      • P(f);SBLOCK,XS(D)::R(A)
      • Q(c);SBLOCK::S(D),XR(i)
      • S(a);OGATE::P(B),XS(a)
      • P(h);::QAR2(C)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).